I made some measurement on the flow rate coming out from the RA680 actually mine is TW6/CT and it has the heater function, still trying to find out how to program it, hiak, no luck so far.
Enough of the crap. I used a one litre container and it took about 6-7 secs for it to fill up.
This calculates to around 600l/h. Changed to a 2500 l/h pump also the same. Seems like the chiller is limiting the flow to 600l/h.
Did anyone of you notice this?